Files
fm-orchestrator/rida/utils.py

45 lines
1.8 KiB
Python

# Copyright (c) 2016 Red Hat, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Written by Ralph Bean <rbean@redhat.com>
""" Utility functions for rida. """
import functools
import time
def retry(timeout=120, interval=30, wait_on=Exception):
""" A decorator that allows to retry a section of code...
...until success or timeout.
"""
def wrapper(function):
@functools.wraps(function)
def inner(*args, **kwargs):
start = time.time()
while True:
if (time.time() - start) >= (timeout * 60.0):
raise # This re-raises the last exception.
try:
return function(*args, **kwargs)
except wait_on:
time.sleep(interval)
return inner
return wrapper